21082320

素因数分解:

$2^4\times 3^2\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{89}}^1$

素因数の和:162

約数の個数: 240

約数和(自身を含む): 83566080

約数和(自身を除く): 62483760

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 47, 48, 56, 60, 63, 70, 72, 80, 84, 89, 90, 94, 105, 112, 120, 126, 140, 141, 144, 168, 178, 180, 188, 210, 235, 240, 252, 267, 280, 282, 315, 329, 336, 356, 360, 376, 420, 423, 445, 470, 504, 534, 560, 564, 623, 630, 658, 705, 712, 720, 752, 801, 840, 846, 890, 940, 987, 1008, 1068, 1128, 1246, 1260, 1316, 1335, 1410, 1424, 1602, 1645, 1680, 1692, 1780, 1869, 1880, 1974, 2115, 2136, 2256, 2492, 2520, 2632, 2670, 2820, 2961, 3115, 3204, 3290, 3384, 3560, 3738, 3760, 3948, 4005, 4183, 4230, 4272, 4935, 4984, 5040, 5264, 5340, 5607, 5640, 5922, 6230, 6408, 6580, 6768, 7120, 7476, 7896, 8010, 8366, 8460, 9345, 9870, 9968, 10680, 11214, 11280, 11844, 12460, 12549, 12816, 13160, 14805, 14952, 15792, 16020, 16732, 16920, 18690, 19740, 20915, 21360, 22428, 23688, 24920, 25098, 26320, 28035, 29281, 29610, 29904, 32040, 33464, 33840, 37380, 37647, 39480, 41830, 44856, 47376, 49840, 50196, 56070, 58562, 59220, 62745, 64080, 66928, 74760, 75294, 78960, 83660, 87843, 89712, 100392, 112140, 117124, 118440, 125490, 146405, 149520, 150588, 167320, 175686, 188235, 200784, 224280, 234248, 236880, 250980, 263529, 292810, 301176, 334640, 351372, 376470, 439215, 448560, 468496, 501960, 527058, 585620, 602352, 702744, 752940, 878430, 1003920, 1054116, 1171240, 1317645, 1405488, 1505880, 1756860, 2108232, 2342480, 2635290, 3011760, 3513720, 4216464, 5270580, 7027440, 10541160, 21082320]

約数ペア:

[(1, 21082320), (2, 10541160), (3, 7027440), (4, 5270580), (5, 4216464), (6, 3513720), (7, 3011760), (8, 2635290), (9, 2342480), (10, 2108232), (12, 1756860), (14, 1505880), (15, 1405488), (16, 1317645), (18, 1171240), (20, 1054116), (21, 1003920), (24, 878430), (28, 752940), (30, 702744), (35, 602352), (36, 585620), (40, 527058), (42, 501960), (45, 468496), (47, 448560), (48, 439215), (56, 376470), (60, 351372), (63, 334640), (70, 301176), (72, 292810), (80, 263529), (84, 250980), (89, 236880), (90, 234248), (94, 224280), (105, 200784), (112, 188235), (120, 175686), (126, 167320), (140, 150588), (141, 149520), (144, 146405), (168, 125490), (178, 118440), (180, 117124), (188, 112140), (210, 100392), (235, 89712), (240, 87843), (252, 83660), (267, 78960), (280, 75294), (282, 74760), (315, 66928), (329, 64080), (336, 62745), (356, 59220), (360, 58562), (376, 56070), (420, 50196), (423, 49840), (445, 47376), (470, 44856), (504, 41830), (534, 39480), (560, 37647), (564, 37380), (623, 33840), (630, 33464), (658, 32040), (705, 29904), (712, 29610), (720, 29281), (752, 28035), (801, 26320), (840, 25098), (846, 24920), (890, 23688), (940, 22428), (987, 21360), (1008, 20915), (1068, 19740), (1128, 18690), (1246, 16920), (1260, 16732), (1316, 16020), (1335, 15792), (1410, 14952), (1424, 14805), (1602, 13160), (1645, 12816), (1680, 12549), (1692, 12460), (1780, 11844), (1869, 11280), (1880, 11214), (1974, 10680), (2115, 9968), (2136, 9870), (2256, 9345), (2492, 8460), (2520, 8366), (2632, 8010), (2670, 7896), (2820, 7476), (2961, 7120), (3115, 6768), (3204, 6580), (3290, 6408), (3384, 6230), (3560, 5922), (3738, 5640), (3760, 5607), (3948, 5340), (4005, 5264), (4183, 5040), (4230, 4984), (4272, 4935)]